And it is why few pitchers have wanted to challenge him over the last two weeks.

They were never seriously challenged over the final 20 minutes.

He led by four at the turn and was not seriously challenged over the back nine.

Forget challenging their stories over dinner, where the spotlight is too strong.

He began in the 1960's as a playwright whose work challenged the Communists' hold over the country.

Those tasks will be particularly challenging over the next two weeks, some Republican strategists said.

There is a time limit involved and obstacles that will make it challenging over the course of 15 different levels.

Israel said the delegation would challenge its sovereignty over Jerusalem.

Jennings was not challenged over the remainder of the course.

When he was challenged over his interpretation, Grouard left the council.